The World Leader in Automatic Back Counterboring Tools
The Autofacer is an ingenious tool that allows a machinist to reach through a hole and machine a circular feature* on the back side of the part automatically. This is accomplished by folding the cutting blade into the shaft of the tool body allowing the tool to pass into the part. Once the tool has entered the part, the cutting blade is mechanically opened and cutting may begin.
* Circular features might include a spot face, counterbore, countersink, chamfer, spherical radius, or some combination thereof.